December weather forecastBrown, CA
December
Weather in December
December, the first month of the winter in Brown, is still a cool month, with an average temperature varying between 35.6°F (2°C) and 51.1°F (10.6°C).Temperature
December is the month that records the lowest temperatures, with averages ranging from a high of 51.1°F (10.6°C) to a low of 35.6°F (2°C).Humidity
In December, the average relative humidity in Brown is 47%.Rainfall
December is the month with the most rainfall in Brown. Rain falls for 4.6 days and accumulates 0.87" (22mm) of precipitation.Snowfall
In Brown, California, snow does not fall in March through October and December.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 6:43 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:01 am and sunset at 4:48 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 7.1h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Brown, CA
- Average high temperature in December: 51.1°F
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (51.1°F).
- Average low temperature in December: 35.6°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is December (35.6°F).
Average pressure in December
Brown, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Brown, CA
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are May and June (9.1mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in December
Brown, CA
- Average humidity in December: 47%
The month with the highest relative humidity is January (48%).
The month with the lowest relative humidity is August (20%).
Average rainfall in December
Brown, CA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Brown, CA
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is March (6 days).
The month with the least rainy days is June (0.8 days).
Average snowfall in December
Brown, CA
- Average snowfall in December: 0"
The month with the highest snowfall is November (0.87").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in December
Brown, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Brown, CA
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 7h and 6min
The months with the most sunshine are June and July (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 6min).
Average sunshine days in December
Brown, CA
- Average sunshine days in December: 25.2 days
The month with the most sunshine days is June (28.4 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in December
Brown, CA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Brown, CA
- Average cloud cover in December: 17
The months with the most cloud cover are January and March (Cloud cover 18).
The months with the least cloud cover are August and September (Cloud cover 4).
Average visibility in December
Brown, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





